While my girlfriend was doing the christmashopping i picked up some very tiny fish that ive identified as Microsynodontis sp. (2)(elog) or sp. "Nigeria"(Shanes World) or sp.cf.pollii (Mergus Bd.5).
I got 4 of them for 5 euros but right now im pretty clueless of how to keep them properly. I could free a 40 cm tank for them, would that be allright for the moment? They are around 2-3 cm tl.
They are very active and have allready eaten some dry granulate food.
Mergus says try to keep a pair for breeding purposes - sexing: unknown....im still trying to understand this.

Any advice would be nice.
greetings
C